The Runner's High

The runner's high is a known phenomenon characterized by feelings of euphoria and reduced anxiety that often occur after engaging in prolonged aerobic activities, like running, swimming or cycling. Initially believed to be caused by the release of endorphins we now understand that this enjoyable sensation involves an interplay of multiple physiological systems within the body.

The traditional explanation revolves around endorphins which're neurochemicals produced by the nervous system and the pituitary gland. These substances bear similarities to morphine. Are known as natural painkillers. During exercise the body increases its production of endorphins which can bind to receptors in the brain. This binding action leads to a decrease in pain perception and an overall sense of well being.

However recent research suggests that the role of endorphins alone does not fully explain the runners high since these molecules are relatively large and struggle to cross the blood brain barrier. As a result scientists have turned their attention to neurochemicals like endocannabinoids – substances naturally produced by our bodies. Endocannabinoids have the ability to cross into the brain and interact, with receptors influencing pleasure, mood regulation and overall feelings of well being. These factors may significantly contribute to experiencing the runners high.

In addition, to endorphins and endocannabinoids there are factors that can contribute to the sensation known as a runners high;

• Dopamine; Engaging in activity triggers the release of dopamine a neurotransmitter linked to the brains reward and pleasure centers.
• Serotonin and norepinephrine; These neurotransmitters are also released during exercise, which can enhance mood and alleviate feelings of depression thereby contributing to the experience of a runners high.
• changes; Regular exercise promotes neuroplasticity, which's the brains ability to form new neural connections. This can improve brain function and resilience potentially leading to an increased sense of well being.
• Stress reduction; Exercise helps decrease levels of stress hormones such as adrenaline and cortisol in the body. This reduction in stress hormones can promote relaxation. Reduce anxiety adding to the sensations associated with a runners high.
• Temperature regulation; The rise in body temperature, during exercise can induce muscle relaxation. Provide a comforting sensation to that of taking a warm bath.

The runners high, which is the feeling of euphoria experienced during or, after exercise can also have factors at play. It is believed that achieving a milestone or engaging in activity can be meditative and improve ones state.

However it's important to note that not everyone experiences the runners high and it may not occur after every exercise session. Various factors such as the intensity and duration of the workout personal fitness level and individual physiology can influence whether someone will feel this phenomenon.

Each persons experience of the runners high can differ greatly. However it is generally agreed upon that aerobic activities performed at moderate to intensities over a period of time are more likely to induce this state.

If you're interested in learning more about the aspects of the runners related topics you may find the following resources helpful;

• Psychology Today article on "The exercise induced endorphin rush"; https;//www.psychologytoday.com/us/blog/the athletes way/201211/the neurochemicals happiness
• British Journal of Sports Medicine publication on "Endocannabinoids and exercise"; https;//bjsm.bmj.com/content/38/5/536
• Cerebral Cortex study on "The Runners High; Opioidergic Mechanisms, in the Human Brain"; https;//academic.oup.com/cercor/article/18/11/2523/285954